Yeah that's one of the emotions we humans do feel. There's also disappointment, depression, loneliness (even with families, spouse and friends) and we also wonder what are we living for/what's the use of existing. But, don't let that put you down. Stand strong and on your feet...You're a warrior, cause living is war and life is a war field. Stand for your loved ones! Motivation or not, there's always hope when there's life)